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Anti-corrosion FRP full grouting sleeve and manufacturing method thereof

A full grouting and anti-corrosion technology, which is applied in auxiliary forming equipment, bridge parts, bridges, etc., can solve the problems of low shear stiffness and achieve the effect of improving poor corrosion resistance and simple construction technology

Inactive Publication Date: 2017-08-01
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

FRP material has the advantages of low density, high strength, easy processing, corrosion resistance, fatigue resistance and easy maintenance, but the lateral shear stiffness of FRP material is small

Method used

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  • Anti-corrosion FRP full grouting sleeve and manufacturing method thereof
  • Anti-corrosion FRP full grouting sleeve and manufacturing method thereof
  • Anti-corrosion FRP full grouting sleeve and manufacturing method thereof

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Embodiment Construction

[0023] The specific implementation of the anti-corrosion FRP full grouting sleeve for longitudinal reinforcement connection of the present invention will be described below in conjunction with the accompanying drawings:

[0024] Such as figure 1 , 2 , 3, and 4 show a corrosion-resistant FRP full-grouting sleeve. The FRP sleeve body 1 is the main structure of the full-grouting sleeve. Inside the FRP sleeve body 1; on the side of the steel bar insertion section of the FRP sleeve body 1, there are respectively grouting ports 4 and grout outlets 5, and the inner cavity of the FRP sleeve body 1 is high-strength grouting material 6; the FRP sleeve body 1 Grooves 7 are provided on the inner wall of the inner wall, and the grooves 7 are used to increase the mechanical engagement force between the high-strength grouting material 6 and the FRP sleeve body 1, and improve connection reliability. The FRP sleeve body 1 is formed by wrapping FRP cloth in layers on a steel pipe mold 8. The ...

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Abstract

The invention discloses an anti-corrosion FRP full grouting sleeve and a method thereof, which belong to the technical field of civil engineering applications, and in particular relate to the technical field of anti-corrosion technology for cross-sea bridges. The FRP full grouting sleeve includes an FRP sleeve body and a steel pipe mold. The FRP sleeve body is formed by FRP cloth layered winding steel pipe moulds. The FRP sleeve body is provided with a grouting port and a grout outlet. The FRP sleeve body Both ends are open, and the inner cavity of the FRP sleeve body is provided with trapezoidal grooves extending along the peripheral surface to match the protrusions on the outer wall of the steel pipe mould. The body of the FRP full grouting sleeve of the present invention is wound by layers of FRP cloth to ensure sufficient corrosion resistance of the grouting sleeve and avoid the phenomenon that the sleeve is corroded first when the connected longitudinal ribs are intact. In addition, the high-strength FRP material increases the tensile strength of the grouting sleeve, while the mechanical engagement force between the trapezoidal groove in the inner cavity of the sleeve and the mortar further increases the tensile strength of the sleeve.

Description

technical field [0001] The invention relates to a method for connecting longitudinal reinforcement in prefabricated concrete components, in particular to a corrosion-resistant FRP full grouting sleeve and a method thereof; it belongs to the technical field of civil engineering prefabricated assembly structures, and in particular relates to the connection of prefabricated assembled bridge piers in corrosive environments technology field. Background technique [0002] At present, the number of bridges built across bays and straits at home and abroad is on the rise. Corrosion damage, as one of the most important forms of damage to marine bridge engineering, is an urgent problem in civil engineering. For this reason, scholars at home and abroad have made various attempts to improve the corrosion resistance of steel bars in reinforced concrete structures and proposed a variety of countermeasures. An effective approach to rust problems. The corrosion of steel bars in concrete st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B17/00B28B21/76E01D19/02
CPCB28B17/00B28B21/76E01D19/02
Inventor 贾俊峰郭扬韩强杜修力
Owner BEIJING UNIV OF TECH
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